- a noncommissioned officer ranking below a technical sergeant and above an airman first class.
- a noncommissioned officer ranking below a sergeant first class and above a sergeant.
- a noncommissioned officer ranking below a gunnery sergeant and above a sergeant.
- a noncommissioned officer holding a rank between sergeant and warrant officer and employed on administrative duties
- US
- (in the Army) a noncommissioned officer who ranks above sergeant and below sergeant first class
- (in the Air Force) a noncommissioned officer who ranks above airman first class and below technical sergeant
- (in the Marine Corps) a noncommissioned officer who ranks above sergeant and below gunnery sergeant
